Boards like ESP32-S3 Zeros (and D1 Minis, though not ESP32 😉) don’t have mounting holes, and foam tape always felt temporary to me—especially with USB plug/unplug forces putting shear on the board.

I ended up using small USB-C extension adapters as dock/mounts: they relocate the service port, provide a sturdy mechanical anchor, and let the board pop out for wiring or service. I’ve used the same idea both as an external service port/mount and as an internal service port. Epoxy provides a strong weld.

At ~$3 each they’ve been a compact off-the-shelf alternative to printed clips, with less bulk and multiple orientations available.

So far I’ve used the pattern on a thermostat, a BLE hub, and now a tiny IR blaster.

Curious if others are doing something similar, or if there are other creative mechanical mounting tricks for no-hole dev boards I’m missing.